Process and apparatus for operating furnaces



April 21,1925.

A. REINSHAGEN PROCESS AND APPARATUS FOR OPERATING FURNACES Filed u 9-, 1922 Patented Apr. 21,, W25.

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'FRQUESS AND AZ'PPARATUS FOR GPERATING FURNAGEB.

.Expplication filed August 9, 3322. Serial No. 580,736.

L (ZZZ whom it may concern:

Be it known that l, ADoLr RnINsHAonN, a citizen of the German Republic, residing at Niederau, near Duren, Germany, have in vented certain new and useful Improvements in Processes and Apparatus for Operating Furnaces, of which the following is a specification.

An improvement in the method of work- IKU ing furnaces, particularly cupola furnaces and also smelting furnaces by introducing Water in liquid form by means of the air blast through the blast pipes into the smelting zone of the furnace has already been proposed. In this manner an important saving of fuel and also improvement of the smelted iron is obtained.

According to the invention this result can also be obtained by introducing the water in liquid state separately from the air blast the water reaching the smelting zone of the furnace only in liquid state. Since in this case, the water does not come under the immediate action of the blast before its entry into the furnace, the water supply in the new method can, in case of need, be better regulated. The most suitable proportion of water must be tested in everycase.

In the drawings, four possible constructions are shown only as examples.

Figure l is a diagrammatic vertical section through the parts of a cupola furnace which here come in question. a is the blast supply pipe which leads to the blast ring 6 furnace in well known fashion. From this ring the blast reaches the interior of the furnace through the known tuyeres 0.

Over each of two of these tuyeres c a water jet (Z is built into the wall of the furnace. These two jets d are connected with any water supply f from which the water is supplied at a suitable pressure to the jets. The form of construction shown in Figure 2, which is also a vertical section, differs from that above described only in the fact that the Water jets d are mounted below instead of above the tuyeres.

Figure 3 shows a form of construction in horizontal section in which the water which surrounds the smelting zone of the jets d are placed between the tuyeres 0. Four of these water jets are shown. They are connected with the common water ring f which may obviously also be used in connection with the jets of Figures 1 and 2.

Figure .4 shows a form of construction in horizontal section in which two water jets d are inserted into the tuyeres 0 in such a way that the water is introduced into the furnace through the tuyeres but separately from I the blast.

It is an essential feature of the invention that the water is introduced into the very interior of the furnace without coming in any way, under the action of the blast before its entry into the furnace.

Having now particularly described and ascertained the nature of my said invention, and in what manner the same is to be performed, ll declare that what I claim is:

1. The method of working furnaces, which consists in introducing water in liquid state separately from the air blast and insuring that the water reach the smelting zone of the furnace only in such liquid state, and submitting it to the action of the blast only upon its entry into the furnace.

2. In a cupola furnace, a blast supply pipe leading to\the blast ring surrounding the smelting zone of the furnace, a water jet adjacent each of the tuyeres and entering the furnace independently of the air blast to introduce the water into the furnace prior to its coming under the action of the blast.

3. In a cupola furnace, ablast supply pipe 8 leading to the blast ring surrounding the smelting zone of the furnace, a water jet adjacent each of the tuyeres and entering the furnace independently of the air blast to introduce the water into the furnace prior 1 to its coming under the action of the blast, the water and blast being introduced into the smelting zone and at different angles.

in testimony whereof I affix my signature in presence of twowitnesses.

ADOLF REINSHAGEN.

Witnesses JACOB Wrrzuuo, Roma BENDE. 

